All the text under that heading will move with it.
You can instantly insert a table of contents for your document, complete with page numbers, all based on your headings.You can easily create consistent formatting from document to document.You will be able to change the formatting of all the headings of a given level at once.It saves a lot of time because you can apply consistent formatting to your headings throughout your document without having to choose the font, size, weight, shading, and borders each time you make a heading.
Why Headings Matter Benefits to Students with Disabilities Don’t just make text big, bold, or underlined. Create headings using Word’s styles labeled “Heading 1,” “Heading 2,” etc.